经不同温度热处理后铁交换沸石的穆斯堡尔谱分析  

Analysis of Mossbauer Spectra of Iron-exchange-zeolite after Heat Treatment at Various Temperatures

作　　者：吴泳华[1] 袁望志 王大志[1] 丁力[3] 俞文海[1] 

机构地区：[1]中国科学技术大学 [2]贵阳工学院 [3]吉林化工学院

出　　处：《无机材料学报》1989年第4期268-271,共4页Journal of Inorganic Materials

摘　　要：测量经不同温度热处理的铁交换沸石的穆斯堡尔谱,给出加热温度在600℃以下,沸石与β-FeOOH 共存,随着加热温度的升高沸石相的比例增加,并逐渐表现为非晶态。到600℃出现α-Fe_2O_3相,温度继续升高沸石相愈来愈少,加热温度为900～1000℃时沸石相不超过7%。We have measured the M(?)ssbauer spectra of iron-exchange zeolite heat-treatedat various temperatures.The results demonstrate that under 600℃ the zeolite coe-xists with β-FeOOH,the relative rate of zeolite rises with the increase in tempera-ture and gradually becomes amorphous,the α-Fe_2O_3 phase appears at 600℃,thezeolite phase is getting less and less as the temperature increases,and the zeolitephase does not exceed 7% between 900℃ and 1000℃.

关 键 词：沸石 热处理 穆斯堡尔谱 

分 类 号：TQ424.23[化学工程]